lkml.org 
[lkml]   [2002]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 6/12] hold atomic kmaps across generic_file_read

On Sat, 10 Aug 2002, Andrew Morton wrote:
>
> If not, I don't think it's worth making this change just for
> the highmem read/write thing (calculating `current' at each
> spin_lock site...) I just open coded it.

Well, this way it will now do the preempt count twice (once in
kmap_atomic, once in th eopen-coded one) if preempt is enabled.

I'd suggest just making k[un]map_atomic() always do the
inc/dec_preempt_count. Other ideas?

Linus

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:27    [W:0.129 / U:0.860 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site